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Upstate/Eastern New York


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A stalled boundary/front will be in place from the Upper Great Lakes
to James Bay early Friday. A sfc low will develop over the Mid-
Mississippi Valley on Friday, and track northeast along the stalled
boundary. As the area of low pressure tracks northeast, the boundary
will start to slowly track east toward the region. The daylight
hours on Friday should be mostly dry, with the chance for showers
increasing from west to east.

As the boundary slowly crosses, over the WNY & North Country region,
at least one additional sfc low is expected to track along the
boundary. This will cause a prolonged period of time where showers
and thunderstorms will be expected. Currently, it looks like the
best chance for more persistent showers will be from Saturday
afternoon through the remainder of the long term period. Timing and
placement of the boundary will be the determining factor in amount
of rain, with a quicker boundary/frontal passage leading to less
rainfall overall for the region. But, if the boundary is as slow as
some guidance is suggesting, a wet weekend will be on tap.

Temperatures during the long term period will be in the mid 70s to
mid 80s, with some day to day temperature fluctuations up and down a
few degrees expected.
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Good thing I'm hiking Thurs/Fri. My friends are up there Thurs-Tuesday. Was planning on heading home on Sunday, but at least I'll get the hikes out of the way. 40 miles of hiking, 12k elevation change in 2 days. Good luck me. If I die or get lost I'll be on the colvin/blake/sawteeth trail on Thurs and Basin/saddleback/haystack on Friday.  :lol:

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16 minutes ago, wolfie09 said:

Looks like GFS trended stronger (closer) with the HP off the coast allowing the boundary to stay farther west..IE less rain...

8996d07b-fcce-4ec2-ba1b-9cbe34e6ee1f (1).gif

If we go with persistence the eastern extent of the rain will be Buffalo Outer Harbor (desertification setting in here from lack of rain...front came through dry yesterday). If we go with the “you’re due” approach BUF will get 10” of rain from Saturday to Monday. I know, solid forecasting metrics here...

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51 minutes ago, BuffaloWeather said:

Good thing I'm hiking Thurs/Fri. My friends are up there Thurs-Tuesday. Was planning on heading home on Sunday, but at least I'll get the hikes out of the way. 40 miles of hiking, 12k elevation change in 2 days. Good luck me. If I die or get lost I'll be on the colvin/blake/sawteeth trail on Thurs and Basin/saddleback/haystack on Friday.  :lol:

My wife and I are up there starting Sunday night....if you don't report back in by then we will commence the search!

 

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Well at least for now the NWS is going with a somewhat wet forecast D4-D7.. Probably not looking at a total washout..

 

Saturday
A chance of showers. Mostly cloudy, with a high near 83. Chance of precipitation is 50%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Sunday
Showers likely. Partly sunny, with a high near 78. Chance of precipitation is 70%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Monday
Showers likely. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Monday Night
Showers likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Tuesday
Showers likely. Partly sunny, with a high near 78. Chance of precipitation is 60%.
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6 hours ago, Buffalo Bumble said:

If we go with persistence the eastern extent of the rain will be Buffalo Outer Harbor (desertification setting in here from lack of rain...front came through dry yesterday). If we go with the “you’re due” approach BUF will get 10” of rain from Saturday to Monday. I know, solid forecasting metrics here...

One extreme or the other… that’s how we roll!  Love running the GFS all the way out and it shows the desert over BUF clear as day.  Like come on…

EDIT to add… I’m sure our drought buster will finally show up on 4th of July weekend.  That’s just how this goes down around here.  

 

DE357B9E-674C-470D-B5E3-E65FDBD9D89B.jpeg

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Don't have a velocity image or loop but you can see the embedded hook in eastern Tompkins County on the reflectivity. BGM did not issue a Tornado warning but did state there was a dangerous microburst detected on radar in the Severe Weather Statement...

WUNIDS_map_(89)(1).gif.27f30651a93cde2d9e819ebdc3527d59.gif

Screenshot_20210622-192039_Gallery.thumb.jpg.99cfebbc704b9a4b563b8de02c5b66d6.jpg

 

Screenshot_20210621-180328_Chrome.thumb.jpg.ea3ec0d2fe31c428ca3b2ecb3ad5aa5d.jpg

 

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On Saturday the above mentioned wave of low pressure will pass by to
our northwest...with its associated frontal boundary impinging on
our western periphery. The approaching front and increasing diurnal
instability should combine to generate at least some scattered showers
and thunderstorms...with the greatest potential for these found across
far western/northern New York...which will lie closest to the surface
boundary.

After that...the forecast details will be heavily dictated by the
position of the frontal boundary...which will in turn be influenced
by the balance between building ridging over the western Atlantic
and multiple additional waves of low pressure tracking across the
Great Lakes and southern Canada. At this point the medium range
guidance remains at least somewhat at odds as to which of these
features will have more influence...though there does seem to be at
least some semblance of a trend toward the western Atlantic ridge
eventually becoming more dominant over time...as exhibited by the
ECMWF/GFS.

Should the above come to fruition...the frontal zone would likely
not make it any further east between Saturday night and Sunday...
before gradually getting displaced a little further back to our
west early on next week. Such an evolution in the pattern would
keep our region on the warm side of the front and thus in a
warm and humid airmass through the end of this period...while
the still-close proximity of the boundary and increasing daytime
instability still yielding at least some potential for scattered
showers and thunderstorms each day...and nocturnal stabilization
then leading to a relative minimum in convective activity later
on each night
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Cool air (850 hPa temperatures around +4C) this early morning with sufficient low level moisture will generate a few streamers of lake clouds to the southeast...and then east of the Lakes. Moderate cumulus is forming over the Boston Hills this early morning off Lake Erie. Lake clouds that form today will advance northward as the low level flow backs this morning.
 

883D97FC-D59C-4F39-AD7F-39E044EE29C0.png

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22 hours ago, wolfie09 said:

Well where ever that boundary sets up is going to see quite a bit of moisture.. Like a conveyor belt from the GOM lol

Euro still keeps it west so there's that..

1800843612_b7afe4b8-7e9e-4d83-a266-47d80

I've been trying to finish staining my deck for about a week or so but can't get a reliable 2 or 3 days with no rain in the forecast.  This doesn't look promising either.  Will have to do it tomorrow or wait for who knows how long.

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